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Scott Seidman  
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  More options Jul 8 2008, 12:17 am
Newsgroups: sci.electronics.design
From: Scott Seidman <namdiestt...@mindspring.com>
Date: 7 Jul 2008 19:17:09 GMT
Local: Tues, Jul 8 2008 12:17 am
Subject: Re: PCB power planes?
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Joerg <notthisjoerg...@removethispacbell.net> wrote in news:PVsck.21945
$co7.12...@nlpi066.nbdc.sbc.com:

> If you use the R2R ladders of DACs you could make one around chips like
> these:
> http://datasheets.maxim-ic.com/en/ds/MAX274-MAX275.pdf

Plenty of companies package that sort of thing in a nice "programmable
resistor" package, and give you a lovely cascadable serial bus to program
them as well.  

--
Scott
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